| Brian Michael Puffer | Director | 15 Jan 2014 | 6 Feb 2018 | British,american | 57 years |
| David James Bucknall | Director | 1 Jan 2012 | 15 Jan 2014 | British | 58 years |
| Debasish Satya Sanyal | Director | 1 Aug 2007 | 1 Jan 2012 | British | 61 years |
| Douglas Patrick Chapman | Director | 23 May 2002 | 1 Dec 2002 | British | 76 years |
| Douglas Patrick Chapman | Director | 1 Jul 2004 | 31 Jul 2007 | British | 76 years |
| Elaine Patricia Skinner-reid | Director | 30 Sept 2020 | 14 Jan 2022 | Irish | 51 years |
| Francis William Michael Starkie | Director | 29 Mar 2006 | 22 May 2006 | British | 77 years |
| Francis William Michael Starkie | Director | 1 Jul 2007 | 30 Sept 2009 | British | 77 years |
| Gordon Young Birrell | Director | 15 Nov 2012 | 2 Apr 2017 | British | 63 years |
| Janet Elvidge | Secretary | 1 Aug 2004 | 1 Feb 2006 | Other | - |
| John Harold Bartlett | Director | 1 Dec 2002 | 27 Feb 2012 | British | 73 years |
| Michael James Skitmore | Director | 1 May 2005 | 1 Jan 2007 | British | 71 years |
| Rashid Jamil Oglu Javanshir | Director | 1 Jan 2007 | 15 Nov 2012 | Azerbaijani | 75 years |
| Robert David Kelly | Director | 23 May 2002 | 1 May 2005 | British | 62 years |
| Robert Gary Jones | Director | 2 Apr 2017 | 1 Oct 2025 | British | 66 years |
| Robert Warren Dudley | Director | 23 May 2002 | 1 Mar 2003 | British | 71 years |
| Roger Christopher Harrington | Director | 1 Oct 2009 | 15 Jan 2014 | British | 60 years |
| Roy Leslie Tooley | Secretary | 23 May 2002 | 1 Aug 2004 | British | - |
| Sandra Jean Macrae | Director | 27 Feb 2012 | 1 Jan 2016 | British | 63 years |
| Trine Lise Juliussen | Director | 10 Mar 2020 | 30 Sept 2020 | Norwegian | 45 years |
| Trine Lise Juliussen | Director | 14 Jan 2022 | 1 Oct 2025 | Norwegian | 45 years |
| Yasin Stanley Ali | Secretary | 1 Feb 2006 | 30 Jun 2010 | Other | - |
